$ git clone -n https://src.fedoraproject.org/rpms/nemo.git /var/lib/mock/f38-build-719899-97316/root/chroot_tmpdir/scmroot/nemo
Cloning into '/var/lib/mock/f38-build-719899-97316/root/chroot_tmpdir/scmroot/nemo'...
$ git fetch origin 8c9aed4296303db3c85c158d0e0c51151776158b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nemo
 * [new ref]         8c9aed4296303db3c85c158d0e0c51151776158b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c9aed4 Update to 5.6.4 release